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Showing results for tags 'marine layer'.
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Hello. I found this fossil matrix in my teens in an area of Northern California that's part of the Chico Formation. The surrounding sea shell fossils were in a layer of hard dark grey shale in a cliff face. I found this loose piece halfway down the hill up against a tree. I was told at the time that it's a concretion. I've never seen a concretion in person but they always look almost spherical in photos online. It weighs 5lb or 2.26kg Shaped like a sectioned log. layer of fossils running horizontal throughout what I've decided is the bottom. Sediment layers in various colors are ring shape above fossil layer, stay consistent from one flat end to the other. Any thoughts on if this was formed as a concretion and maybe how it got its shape? Thanks for looking!
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- concretion
- fossil
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PBFossilAgae05.tif Pittsburg Bluff Formation (near Mist, Oregon) Late Eocene or early Miocene. I am finding a lot these tubular items in the matrix. Still waiting from the adapter for my good camera, this is from a 5 mpx camera. Since it is a marine environment, perhaps this is some type of Algae? On my 27" screen the yellow ring part has fuzzy hairs protruding. This was taken with a 5 mpx camera and a 10X objective.
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- algae
- marine layer
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